CN203758553U - Self-rectification wedge-shaped flow meter - Google Patents
Self-rectification wedge-shaped flow meter Download PDFInfo
- Publication number
- CN203758553U CN203758553U CN201420140438.5U CN201420140438U CN203758553U CN 203758553 U CN203758553 U CN 203758553U CN 201420140438 U CN201420140438 U CN 201420140438U CN 203758553 U CN203758553 U CN 203758553U
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- CN
- China
- Prior art keywords
- wedge
- positive pressure
- flow meter
- tube
- pressure tappings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010079 rubber tapping Methods 0.000 claims description 21
- 235000019994 cava Nutrition 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000009530 blood pressure measurement Methods 0.000 abstract 7
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a self-rectification wedge-shaped flow meter. The flow meter comprises a measurement tube, a wedge-shaped throttling element, a positive pressure measurement port, a negative pressure measurement port, a cross fluid director and flanges. The positive pressure measurement port and the negative pressure measurement port are formed in the wall of the measurement tube, a scarf is arranged on the wall of the measurement tube between the positive pressure measurement port and the negative pressure measurement port, and the wedge-shaped throttling element is welded at the scarf and concave relative to the pipe wall. The cross fluid director is formed by insertion of two direction sheets and is connected with the wall of the measurement tube internally. The cross fluid director is disposed in front of the positive pressure measurement port, two ends of the measurement tube are connected with the flanges, and the direction sheets are rectangular plates with notches. By means of the flow meter, the problem of effects on measurement results caused by the fact that front and back straight tube sections are not long enough during mounting is solved, the structure is simple, and the measurement accuracy is high.
Description
Technical field
The utility model relates to a kind of instrument and meter of measuring pipeline fluid flow, specifically a kind of wedge flow meter with self-rectifying function.
Background technology
For the reliability and stability of measurement data, conventional wedge flow meter also all will stay the straight length of certain length when mounted, exactly in order to eliminate the interference of the non-straight length fluid flow such as pipe fitting, valve part, make instrument measurement result more reliable.But in many cases, can not meet the straight length requirement that flowmeter is installed, cause measurement data inaccurate.
Utility model content
The utility model, in order to address the above problem, does not need certain front and back straight length when a kind of installation is provided, and can ensure accurate, the reliable self-rectifying wedge flow meter of measurement result.
The purpose of this utility model is to adopt following technical proposals to realize:
A kind of self-rectifying wedge flow meter, comprises measuring tube, wedge shape throttling element, positive pressure tappings, negative pressure tappings, cross air deflector and flange; The tube wall of described measuring tube is provided with positive pressure tappings and negative pressure tappings, and the tube wall of the measuring tube between described positive pressure tappings and negative pressure tappings is provided with wedge mouth, and wedge shape throttling element is welded on wedge mouth, and tube wall caves in relatively; Described cross air deflector is pegged graft and is formed by two flow deflectors, and in be connected to measuring tube tube wall; Described cross air deflector is positioned at before positive pressure tappings; The two ends of described measuring tube are connected with flange; Described flow deflector is notched rectangular slab.
Described wedge shape throttling element mainly plays throttling action, and thereon, downstream produced a differential pressure, the positive and negative pressure tappings in both sides is drawn this differential pressure, can deliver to differential pressure transmitter and change electric signal output into; That self-rectifying refers to is unstable, after the cross air deflector rectification in wedge flow meter, become with the fluid of whirlpool that flow velocity is even, flow field stable, be convenient to the accurate output of pressure reduction, thereby even without certain front and back straight length, also can make measurement result accurately, reliably.
The beneficial effects of the utility model are, have solved wedge flow meter when mounted because the impact of front and back flow development length not and on measurement result, and have simple in structure, improved the advantages such as measuring accuracy.
Brief description of the drawings
Fig. 1 is the utility model one-piece construction schematic diagram.
Fig. 2 is along measuring tube axial section structural representation.
Fig. 3 is the cross-sectional view that cross air deflector coordinates with measuring tube.
Fig. 4 is the structural representation of fair water fin.
Fig. 5 is the structural representation of wedge shape throttling element.
In figure, 1-flange, 2-positive pressure tappings, 3-negative pressure tappings, 4-cross air deflector, 5-wedge shape throttling element, 6-measuring tube, the 7-the first flow deflector, the 8-the second flow deflector, 9-wedge mouth.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As Figure 1-Figure 5, the self-rectifying wedge flow meter of the present embodiment, by measuring tube 6, wedge shape throttling element 5, positive pressure tappings 2, negative pressure tappings 3, cross air deflector 4 and flange 1; Described wedge shape throttling element 5 is by opening one for welding the wedge mouth 9 of wedge shape throttling element 5 on the measuring tube 6 between positive pressure tappings 2, negative pressure tappings 3, then wedge shape throttling element 5 being welded on wedge mouth 9; Described cross air deflector 4 is welded in measuring tube 6, is positioned at before sphenoid 5; As shown in Figure 3-4, cross air deflector 4 is that first flow deflector 7 and second flow deflector 8 cross welds identical by two form.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection domain of the present utility model.
Claims (1)
1. a self-rectifying wedge flow meter, is characterized in that, comprises measuring tube, wedge shape throttling element, positive pressure tappings, negative pressure tappings, cross air deflector and flange; The tube wall of described measuring tube is provided with positive pressure tappings and negative pressure tappings, and the tube wall of the measuring tube between described positive pressure tappings and negative pressure tappings is provided with wedge mouth, and wedge shape throttling element is welded on wedge mouth, and tube wall caves in relatively; Described cross air deflector is pegged graft and is formed by two flow deflectors, and in be connected to measuring tube tube wall; Described cross air deflector is positioned at before positive pressure tappings; The two ends of described measuring tube are connected with flange; Described flow deflector is notched rectangular slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140438.5U CN203758553U (en) | 2014-03-26 | 2014-03-26 | Self-rectification wedge-shaped flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140438.5U CN203758553U (en) | 2014-03-26 | 2014-03-26 | Self-rectification wedge-shaped flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758553U true CN203758553U (en) | 2014-08-06 |
Family
ID=51253809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420140438.5U Expired - Fee Related CN203758553U (en) | 2014-03-26 | 2014-03-26 | Self-rectification wedge-shaped flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203758553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424107A (en) * | 2016-01-07 | 2016-03-23 | 兰州工业学院 | Double-flange trapezoidal flow meter |
| CN111379532A (en) * | 2018-12-29 | 2020-07-07 | 中国石油大学(华东) | Flow monitoring device and drilling equipment |
-
2014
- 2014-03-26 CN CN201420140438.5U patent/CN203758553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424107A (en) * | 2016-01-07 | 2016-03-23 | 兰州工业学院 | Double-flange trapezoidal flow meter |
| CN111379532A (en) * | 2018-12-29 | 2020-07-07 | 中国石油大学(华东) | Flow monitoring device and drilling equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 |